219 research outputs found

    The Most Common Taekwondo Kicks using the eShield at the 23rd Asian Taekwondo Championships, Vietnam 2018

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    This paper focuses on identifying the most common taekwondo hits and kicks used by players at the 23rd Asian taekwondo championships, Vietnam 2018. A lot of researchers attended the 23rd Asian taekwondo championships and they analyzed the quarterfinals, semifinals, and finals for all weights classes for both males and female players. 111 matches (55 for male and 56 for females) were analyzed in this study. A form was used to process and analyze the matches. The results of this study showed that the turn kick attack with the rear leg at the abdominal level was the most commonly used kick, with the highest rate among male and female players (41.4% males and 46.3% females). Also, the percentage of the offensive kicks and strategies among males and females was very high compared with the defensive kicks and strategies. In this regard, the percentage of the offensive kicks among the males was 91%, whereas the rate of the defensive kicks reached 9%. On the other hand, the rate of the offensive kicks among the females was 88%, whereas the rate of the defensive kicks reached 12%. It was concluded that the offensive kicks at the abdominal level was the most commonly used kick among the players. In addition, there was a significant increase in the rate of the face kicks after the regulations amendments

    Demonstration Of Building Materials Utilization In Traditional Mosque In Mosul, Iraq From 1100s To 1800s Ad

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    Architectural design defined as “the method of organizing materials and forms in a specific way to satisfy a definite purpose”. The material is one of the tools used in the process of architectural design as specific part of design solution. In order to identify the architectural characteristics and variations in traditional mosques designs, field survey of the building materials of historical mosque was conducted. Local materials used in construction of mosques in six regions identified. According to role of building materials availability in different regions all over the world where Islam was spread, four types of mosques were concluded. Twelve mosques were selected as sample of the study. Each mosque was analysed in terms of its components and materials used for architectural elements. The findings of the study demonstrate the aspects of using traditional building materials in the architectural elements of the historic mosques

    Reframing Urban Design to sequence developing world cities: designing for patterns in Yeoville/Bellevue, Johannesburg

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    This thesis is being submitted for the Degree of Masters In Urban Design at the University of the Witwatersrand, Johannesburg.Current understandings of Urban Design point towards the fact that it is the art and science of city making. Like other aspects of Architecture, it begins with a site analysis, followed by the formulation of a vision for the built environment and thereafter a process of transforming the vision into reality (Carmona et.al, 2003). Thus, Urban Design is perceived as a discipline that gives rise to the form and defi nition of the full spectrum of forces including social, economic, cultural, ecological, political and aesthetic dynamics (Dixon, 2005). The role of the Urban Designer can therefore be understood as central to a number of other stakeholders such as Traffi c Engineers dealing with vehicular movement, Civil Engineers concerned with structural design, Architects designing built form, Landscape Architects designing open space, Urban Planners formulating policy and the Property Developers involved in aspects of land investment. However, as urban populations grow, become more diverse and fragmented, the function of Urban Design and the role of the Urban Designer becomes questionable (Madanipour, 1996). The past tradition of thought in Urban Design (visual artistic approach) incorporated a fi rm belief in the physical aspects of city making relying on built form as a primary informant. This tradition has, however, been replaced by a more recent tradition (social usage approach) which incorporates a fi rm belief in interpreting phenomena occurring in public space. This served as a response married to the phenomenon of increased population density and rapid urbanisation persistent in the developing city context due to global migration patterns (Watson, 2009). Consequently, in its plight to reframe Urban Design to sequence developing cities, this thesis conducts a comparative analysis between developed and developing world cities regarding national migratory, population density and urbanisation trends and the effects that it poses on regions, cities and localities. In so doing, it progresses to a realisation that increased living densities in turn spills over into the public realm and onto the street edge for retail and social service access purposes. Thus, a greater mix of uses in the built environment is forged. The increased density of people on sidewalks in essence stimulates transport movement as a collector service which structures street connectivity systems around retail facilities and social services. From the analytical fi ndings here, this thesis recognises that there exist relationships between built form confi guration and socio-economic activities occurring in public space. In light of the above, the thesis employs the combination of the visual artistic and social usage approaches to form the making places approach, which can be appropriate for Urban Design in developing cities. After establishing a new approach, the thesis structures the above-mentioned operations into an evolved conceptual framework. Thus, the conceptual framework recognises that time change in developing cities in conjunction with population density and migration cause overlapping relationships between building density, housing and social services, retailing, land use mixes, transport/movement and street connectivity across various scales and within the formal, semi-formal/semiinformal and informal realms. With this being the case, the thesis analyses current literature which argues that the broader problem is the fact that the interrelatedness of the above-mentioned concepts is negated in theory. It develops the problem statement further by stating that a lack of the interrelatedness of the concepts contained in the conceptual framework has in turn infl uenced a lack of such in current research and urban design practice in developing cities. This is confi rmed through measuring the extent to which three South African Urban Design practice case studies consider concepts of building density, housing and social services, retailing, land use mixes, transport/movement and street connectivity across various scales and acknowledging the lack thereof. As a means of responding to the problem identifi ed above, a set of research techniques is investigated using a Yeoville/Bellevue, Johannesburg site-specifi c case with the aim of assisting designers to better apply the evolved conceptual framework. Simultaneously, the thesis uses Yeoville/Bellevue as a focus area to illustrate the manner in which building density, housing and social services, retailing, land use mixes, transport/movement and street connectivity can be considered across various scales. This essentially progresses into the creation of an Urban Design Framework for Yeoville/Bellevue that strengthens the linkages between housing and social services, retailing and transport/movement through using principles of street connectivity, land use mix and building density creation. An implementation strategy for the Design Framework is then established. Through the execution of the above process the collective consideration of building density, housing and social services, retailing, land use mixes, transport/movement and street connectivity across various scales serves as the basis for reframing Urban Design to suit developing cities

    The Effect of Curvature Ratio on Flow Structureand Fluids Mixing in 90o bent square duct.

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    كثير من المشاكل الميكانيكة والكيمياوية تعتمد بالأساس على خصائص الأختلاط لسائل مرشوش مع الغاز الحامل له وهي عملية تتأثر بقوة بمعدلات تبادل الكتلة والحرارة. الجريان الثانوي الناتج عن قوى الطرد المركزي المصاحبة لتغير جوهري في اتجاه الجريان يسبب تكون دوامات متعاكسة الدوران. تهدف الدراسة الى التحقق من أثر نسبة الأنحناء على بنية الجريان وشدة الاضطراب خلال عملية خلط سائل مع غاز لمنظومة حقن ماء مسبقة لمجرى منحني. تستثمر الدراسة تقنية المعالجة الصورية التجريبية PIV بهدف تعقب عملية تكون جريان ثانوي اثناء انتقال خليط ماء-هواء عبر جزء منحني من المجرى. أعتمدت الدراسة ثلاث نسب أنحناء 0.25,0.5 و0.75  لمتوسط سرع 2.5  و 5 m/s لجريان هواء عبر مجرى مربع. تظهر الصور تكون زوج من دوامات دوارة (رباعية-الفصوص) لكل نسب الأنحناء المدروسة مع اندفاع  الدوامات القريبة من الجدار الداخلي للمنحني نحو الخارج مع تناقص نسبة الأنحناء كنتيجة لتأثير الطرد المركزي وأنفصال الجريان. تصميم وترتيب مصفوفة حاقنات الماء تقرر أستنادا الى المحاكاة العددية بأستخدام الحزمة البرمجية ANSYS FLUENT 19.R1 مع اعتماد نموذج الأضطراب RNG-k-. النتائج العددية تظهر ان شدة التدويم لها تأثير صغير على عملية الخلط عند تغير عدد رينولدز ولكنها تتأثر بقوة مع تغيير نسبة الأنحناء. المقارنة الظواهرية بين النتائج التجريبية والعددية قدمت تقاربا جيدا للدراسة الحالية، حيث أن الحد الأقصى للانحراف المسجل كان (7,1)%.Many mechanical and chemical problems rely mainly on the mixing characteristics of a dispersed liquid and the carrier gas which is strongly affected by the rates of mass and heat exchanged. The secondary flow generated by the centrifugal forces accompany a substantial change in flow direction leads to the presence of counter rotating vortices. The study investigates the effect of curvature ratio on the flow structure and turbulence intensity during a liquid-gas mixing process prior to a bent duct. The study employs the experimental Particle Image Velocimetry technique (PIV) in purpose tracking the secondary flow structure when the water-air mixture travelling through a bent duct. The curvature ratios were taken to be (0.25, 0.5, 0.75) at average velocities of 2.5 and 5m/s for air flowing through a square duct. The PIV images illustrate the appearance of a Pair of rotating Dean vortices (four-cell pattern) generated for all curvature ratios with the vortices near the inner side of the bend moved outward while decreasing the curvature ratio as a result of centrifugal effect and flow separation. The design and the configuration of the water nozzles matrix is decided according to the numerical simulation using ANSYS FLUENT 19.R1, with RNG-k-ε turbulent model. The numerical analysis showed that the swirl intensity has little effect on mixing due to changing Reynolds number and was more influenced by the changing of the curvature ratio. The phenomenal comparison between experimental and numerical results showed good agreement as the maximum deviation recorded is about (7.1%).&nbsp

    Design and Investigation of LTE 3GPP Baseband Transceiver Based Fourier Signals for Different Channel Estimation Algorithms in SUI Channels

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    3GPP LTE is the evolution of the UMTS in response to ever?increasing demands for high quality multimedia services according to users’ expectations. These technologies have been selected for LTE 3GPP. Pilot?assisted channel estimation is a method in which known signals, called pilots, are transmitted along with data to obtain channel knowledge for proper decoding of received signals. This paper refers to channel estimation based on time-domain channel statistics. Using a general  channels model for Stanford University Interim (SUI) Channel Models, the aim of the paper is to find out the most suitable channel estimation algorithms for the existing LTE 3GPP Baseband Transceiver and modified the bit error rate for this system. Starting with the analysis of channel estimation algorithms, we present the Minimum Mean Square Error (MMSE (and Least Square (LS (estimators and compromising between performances under different SUI channel scenarios. Performance of these algorithms has been measured in terms of Bit Error Rate (BER). The bit error rate for a 16-QAM system is presented by methods of Matlab simulation results. Keywords: LTE 3GPP, MMSE, LS, OFDM, SUI

    Expression of Alkaline Phosphatase by periodontial tissue treated with topical application of VEGF and TGF-beta1

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    Growth factors are able to regulate significant cellular events in tissue regeneration and repair in periodontium injury.VEGF is a key regulator of physiological and pathological angiogenesis,because it induces endothelial cell proliferation, stimulates angiogenesis and TGF-beta1 effects on cell growth, biological interactions and receptor binding abilities .Both factors maintain  periodontal health and affected on the expression of ALP by periodontal tissue. The aim of the present study To identify the biological events for expression of ALP by application  of VEG and TGF-beta1 , in periodontial healing. Eighteen male Albino rats were subjected for non surgical operation of distal sides of  both lower anterior teeth, right side was considered as experimental site treated with 1µm of a combination of VEGF and TGF  ,while left be the control and treated with 1µm of normal saline. All the samples were studied immunohistochemistry for identification alkaline phosphatase at three periods 3,7,14 day postoperatively. The results demonstrated a higher records of positive  gingival epithelial cell,stromal cell ,PDL cell and bone cell that expressed strong immune-reaction of  ALP in combined (VEGF &TGF-?1)group in comparison to control. Conclusion .The present study suggested that using of a combination of VEGF and TGF in injured periodontium  is a powerful tool in regenerative  of periodontium tissue ,by strong expression of ALK by epithelial and connective cells.. Keywords: vascular endothelial growth factor;periodontium healing,alkaline phosphatase,transforming growth factor. Abbreviations : vascular endothelial growth factor(VEGF),periodontal ligament (PDL), alkaline phosphatase (ALP), transforming growth factor(TGF)

    Prevalence of Anxiety in Adults Obese in Baghdad (Obesity Center) According to Standard Scoring System (Beck Anxiety Inventory)

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    Objectives: The purpose of this study was to determine the extent to which anxiety and obesity-related, and whether it is in fact the issue of poor eating habits, to determine the prevalence of anxiety among the topics of people seeking to obesity and the study of anxiety and social relationship symptoms of anxiety with age treatment, and the duration of obesity , body mass index (BMI) and binge eating (BE). Study DesignThe study is a cross-sectional descriptive study conducted in Baghdad city during the period from November 2014  to November 2015, which assess mental health and psychosocial situation patient Committed to diet , BMI, physical and socio demographics for both obese males and females who live in the Baghdad city and attending Obesity research and therapy center in Alkindy college of  Baghdad university medicine The sample of the study is a judgmental sample .The data were collected during a four months period since beginning of December 2014 to the end of March  2015.The total number of patient involved in the study is (320) Person, 20 were selected for a pilot study which were excluded from the main sample (16) patients from female and (four) males  refuse to participate in the study .and remain(300) sample which classificated to females It is the largest in the sample estimates 74%   and males It is the smallest in the sample estimates26%.                                                                                       Setting of the Study The setting of the study in Baghdad city.Baghdad University.Kindy College of Medicine Obesity research and therapy center. Subjects and Methods This study included both patients male and female aged 20-60, living in the Baghdad city, the data were gathered through structured direct interview technique and developed questionnaire that include many questions about personal and demographic information, health status, psychosocial status, and food intake method .measure body mass index (BMI) (weight[kg]/height[m2]), through measuring  height , weight and waist. In this study during the interview  the questions about anxiety Patients were asked to clarify the concern has to do with weight gain and not worry in general show that the age group of 20-40yrs categories concern linked to the appearance of the body shape change either age group above 40yrs is increasing concern concurrently chronic diseases related to obese such as high blood pressure and joint pain , take period  asked  to each patient about anxiety only 15 minutes knowing that the data collection was all days of the week except Friday and Saturday begin at 8:30 A.m and continue until 1:30 p.m, The questionnaire  are standard only Translated is divided into two parts. Part 1: primary information, which includes personal and social (demographic) information, and also indirect information related to the study. Personal and demographic information. Part 2: specialized information which includes four domains and illustrated as follows: Health status, Psychological status, and physical activity and Food intake. Results The results indicated that the majority of study sample (74%) were females and the remaining were males (26%), while regarding  age group the studied sample are distributing similarly at first of the three groups, and they are accounted (87%), Marital Status, married were reported vast majority of the studied sample, and they are accounted (77.7%). With respect "Occupation", the largest part of the studied sample are Unemployed and they are accounted (67%). Finally, quarter of the studied sample had high educational level, and they are accounted (24.7%), while whom had low educational levels, such that primary, intermediate, and secondary schools are accounted (60.67%), Anthropometric results the majority of obese had reported with third class, and they are accounted (53%),while Waist circumference results the majority of waist had reported with Type-1, and they are accounted (50.7%), Physical Activity majority of responding are reported with moderate group, and they are accounted (53.25%). assessments of different scaling system (BAI) among the studied sample Results that majority responding having a moderate assessments, and they are accounted (52.3%). Results ordered statistics concerning defected numbers of scaling system (BAI) among studied of obesity sample prevalence (> 2 : 3) times, since mean value of defected individuals, item Nervous have large number defected is(271) consider order (1)while item Face Flushed has small number defected is(83) consider order(21). relationship among Beck Anxiety Inventory scoring scales (BAI) with  socio-demographical, Physical Activity ,diseases related to obese having high significant in at P<0.01, Results that BMI and Waist Circumference having significant relationships with an overall assessment of scaling system BAI at P<0.05, The study was extracted workers depending on the operator and technical anaylsis, a body massهindex and waist circumference for people who have obesity excessively and its relation to these factors scale anxiety "rate to find which factor has a strong effect statistically. As a result, it was found that the minimum impact was represented by" body mass index " , when the maximum effect represented "in waist circumference."  Showing that the relationship between anxiety and obesity inverse relationship to obesity claim to anxiety and anxiety as well as cause obesity. Conclusions -Socio-Demographical Characteristics Variables having an conventional distribution .and that similar to who had weight . except of gender factor which shows that female has three time are suffering from obesity associated with anxiety profile in contrast of male and that might be interpreted gender impact of obesity status on female, About Eighty percent of the studied sample are recorded obese class two and three .and that might be interpreted high effectiveness of them within anxiety profile, About Fifty percent of the studied sample are recorded Waist class two and three. And that might be interpreted high effectiveness of them within anxiety profile, More than ninety percent of the studied sample are classified with low .and moderate physical activity .and that might be interpreted  high effectiveness of them toward anxiety profile, The suggested results evaluation for assess impact level of mental disorders by ordered numbers of BAI domains system among studied of obese adults sample in the light of anxiety cases as a result of obesity that most of the scales recorded existence of the problem. This reflects and beyond any doubted the impact of obesity on causality of anxiety and mental disorders,Relative to subjects (waist circumferences) parameter. Sequential augmentation are seems clearly occurred at the second and third obese index and it could be indicating that (waist circumference) parameter had more reliable for studying problems of mental disorders (anxiety)  better than (BMI)parameter .rather than both of them had recorded significant relationships concerning with different scaling of BAI system. Keywords: Body mass index, Waist Circumference, Beck anxiety inventory

    Effect of adding different levels of Lycopene to the ration on some lipid profile traits of the Laying hens ISA-Brown*

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    This research was conducted to study the effect of adding different levels of Lycopene powder to the ration on some lipid profile traits of laying hens ISA-Brown. Used in this experiment 345 layer hens ISA Brown and were 23 week old were randomly  allotted  in 5 groups , 3 replicates ( 23 hens per replicate) For the period  from 7/1/2013 to 23/6/2013  . Experiment included five treatments and by the following :First treatment : a negative control group without of any addition , treatment second group control positive was added 200 mg / kg feed (vitamin E) to the ration , and treatments, third, fourth and fifth represents add lycopene powder  into the ration at rates 100, 150 and 200 mg / kg feed respectively . Included experiment estimate some lipid profile traits (cholesterol , cholesterol egg yolk ,  triglycerides , high density lipoprotein (HDL) and low density lipoprotein (LDL) The results of the experiment get decline of improvement (p <0.05) to the level of cholesterol, cholesterol egg yolk , triglycerides and low density lipoprotein (LDL) when compared with first treatment (control) , and increased to the level of  high density lipoprotein (HDL) in the blood serum laying hens for treatments lycopene powder and vitamin E treatment during the periods experiment . Key word : Lycopene , HDL , LDL , cholesterol egg yolk
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